Apple will let you choose between phone speed and battery life

Apple chief Tim Cook said in an interview with ABC News that an upcoming version of Apple's mobile iOS operating system will allow iPhone owners to turn off the part of your iPhone's software that slows it down to preserve its battery life. But he said he wouldn't recommend turning it off because the company slowed the phones to prevent other problems. Apple has previously said that turning off the performance throttling could tax your battery and make your phone shut down unexpectedly.

The update is expected in the coming months and will roll out first to developers.